PRICE T ROWE ASSOCIATES INC /MD/

Position in WAT — Waters Corp /De/

CIK 80255 BALTIMORE, MD

Position in WAT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$334,735,537

+$79,830,485 QoQ

Shares Held

1,124,028

+67.5% QoQ

Ownership

1.14%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 96.94571665474525.ToString("F0")% Shared 0.ToString("F0")% None 3.0542833452547447.ToString("F0")%

Healthcare · as of Mar 31, 2026

PRICE T ROWE ASSOCIATES INC /MD/ holds $13,532,353,094 across 31 Diagnostics & Research names. WAT ranks #10 (2.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	6,315,471	$3,104,243,460
2	DHR	Danaher Corp /De/	15,352,887	$2,910,907,374
3	NTRA	Natera, Inc.	12,184,876	$2,436,853,350
4	DGX	Quest Diagnostics Inc	6,297,987	$1,234,279,491
5	RVTY	Revvity, Inc.	10,090,158	$883,998,742
6	GH	Guardant Health, Inc.	7,023,689	$648,778,152
7	MTD	Mettler Toledo International Inc/	305,763	$385,628,295
8	IDXX	Idexx Laboratories Inc /De	638,063	$358,521,218

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$334,735,537	1,124,028	+67.5%	Shares	Defined	2026-05-15
2025-12-31	$254,905,052	671,103	+509.8%	Shares	Sole	2026-02-17
2025-09-30	$32,995,889	110,056	+28.0%	Shares	Sole	2025-11-14
2025-06-30	$30,021,628	86,012	+0.1%	Shares	Sole	2025-08-14
2025-03-31	$31,664,585	85,912	+2.1%	Shares	Sole	2025-05-14
2024-12-31	$31,213,885	84,139	+1.1%	Shares	Sole	2025-02-14
2024-09-30	$29,951,844	83,225	+1.7%	Shares	Sole	2024-11-14
2024-06-30	$23,746,902	81,852	+1.9%	Shares	Sole	2024-08-14
2024-03-31	$27,646,143	80,313	+0.7%	Shares	Sole	2024-05-15
2023-12-31	$26,265,310	79,778	+2.4%	Shares	Sole	2024-02-16
2023-09-30	$21,367,813	77,925	-1.7%	Shares	Sole	2023-11-14
2023-06-30	$21,132,357	79,284	-0.0%	Shares	Sole	2023-08-14
2023-03-31	$24,552,110	79,295	-51.4%	Shares	Sole	2023-05-15
2022-12-31	$55,894,324	163,157	-75.9%	Shares	Sole	2023-02-14
2022-09-30	$182,249,446	676,175	-19.1%	Shares	Sole	2022-11-14
2022-06-30	$276,479,509	835,336	+1.2%	Shares	Sole	2022-08-15
2022-03-31	$256,140,656	825,222	+224.0%	Shares	Sole	2022-05-16
2021-12-31	$94,905,691	254,712	+5.8%	Shares	Sole	2022-02-14
2021-09-30	$86,023,905	240,761	+46.0%	Shares	Sole	2021-11-15
2021-06-30	$56,975,882	164,856	+61.1%	Shares	Sole	2021-08-16
2021-03-31	$29,079,968	102,333	-6.9%	Shares	Sole	2021-05-17
2020-12-31	$27,202,591	109,945	-4.4%	Shares	Sole	2021-02-16
2020-09-30	$22,512,396	115,047	-5.9%	Shares	Sole	2020-11-16
2020-06-30	$22,058,951	122,278	-7.9%	Shares	Sole	2020-08-14
2020-03-31	$24,173,145	132,783	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.